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zheka24 [161]
3 years ago
8

Halving the distance (i.e., decreasing by a factor of two) between two charged objects will cause the electrical force between t

hem to be ___ the initial force.

Physics
1 answer:
Tcecarenko [31]3 years ago
7 0

Explanation:

Below is an attachment containing the solution.

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cellular respiration.

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You are playing ice hockey with friends on a frozen pond. The hockey puck (mass 0.2 kg) is sliding on the ice at 10 m/s when it
chubhunter [2.5K]

Answer:

The mass of the hailstone is  m_2 = 0.05

Explanation:

From the question we are told that

    The mass of the hockey puck is m_1  = 0.2 \ kg

     The initial speed of the puck is u_1 =  10 \ m/s

      The final speed of the puck is  v_f  =  8 \ m/s

According to the principles of linear momentum

      m_1u_1 + m_2u_2 = (m_1 + m_2)v_f

At initial the velocity of the hailstone was zero so

       u_2 =  0 \ m/s

So  

     m_1 u_1 =  (m_1 + m_2 )v_f

substituting values

        0.2 *  10 =  (0.2 + m_2 )* 8

=>     2 =  (0.2 + m_2 )* 8

=>     0.25 = 0.2 + m_2

=>    m_2 = 0.05

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3 years ago
Which kinds of objects emit light? A. objects that shine B. hot objects C. distant objects D. colored objects E. all objects
Vinil7 [7]

Answer:

Correct answer is A. object that shine

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